improved method

• 改进方法

improved method的用法和样例：

例句

1. An improved method for synthesis of clindamycin acetonide was introduced.
   介绍了制备克林霉素磷酸酯中间体丙酮叉的工艺改进方法。
2. The problems on the operation of the primary cooler with mixed oil are explicated, the method of improvement and practice effect are described.
   文中阐述了初冷用混配油操作中存在的问题，介绍了改进方法及实践效果。